Japanese stiltgrass (Microstegium vimineum)
: Nepalese browntop, Chinese packing grass, Basketgrass, Microstegium
: Introduced into the United States in Tennessee around 1919 and likely escaped as a result of its use as a packing material for porcelain.
: Annual; grass, reaching 1 m (3.25 ft) in length. Lies on ground and roots at nodes along stems; upright branches look like individual plants.
: Alternate, pale green; asymmetrical; lanceolate; slightly pubescent; 5-8 cm (1.25-2 in) long, with a silvery line along the center of the blade.
: Thin, weak roots form along the stem at nodes.
: Terminal racemes bear chasmogamous flowers, while axillary racemes bear cleistogamous flowers.
Fruit and seeds
: 2.8-3.0 mm, ellipsoid achenes.
: Native to Asia and Japan; shade tolerant/ does not tolerate full sun or standing water. Found in streams and riverbanks, moist forest, roadsides, ditches on moist soils.
: By seed. Very abundant which attach to animals, clothing; appears to be dispersed by deer. Seed persists in the seed bank for a long time.
: Native whitegrass (Leersia virginica
Monitoring and rapid response
: Monitor shady paths, roadsides, moist sites in the fall; effectively controlled using any of the several readily available general use herbicides such as glyphosate.
: The Michigan Natural Features Inventory
(MNFI) has partnered with MISIN to provide the information in this fact sheet. Species images and/or information were used with permission from "A Field Identification Guide to Invasive Plants in Michigan's Natural Communities
" and "A Field Guide to Invasive Plants of Aquatic and Wetland Habitats for Michigan